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Al2O3-SiC-C castables with pelletized graphite addition of 0,2%,4% or 6%（ by mass,the same hereinafter） were prepared using brown fused corundum（ 8- 5,5- 3 and 3- 1 mm）,dense fused corundum（ ≤1 and 0. 045 mm） and Si C（ ≤1 and ≤0. 064mm） as main starting m